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Phrase(s): hover over someone or something
1. Lit. to remain suspended over someone or something. • The rescue helicopter hovered over the floating sailor. • A huge blimp hovered over the football stadium. 2. Fig. [for someone] to stay close to someone or something, waiting, ready to advise or interfere. • Please don’t hover over me, watching what I am doing. • I have to hover over this project or someone will mess it up.
McGrawhill's American Idioms And Phrasal Verbs